doctor yo , you are correct it is the non pro , never having the card i was unaware that the pro had all 8 pipes open , is see the main difference is clock speeds and the 128bit memory vs the 9700pro's 256 bit memory bus . as far as ctd's im sure youve done the sound acelleration down a notch , you might want to check ur irq's to make sure that your not sharing major components , as far as the 754 boards , thats what i run , upgrade path will be limited but they are goin to produce to atleast the end of 05 , and i change boards and cpu's often so its a non issue . if you look at 939 vs 754 there is a difference in performance , on avg about 5 to 6 fps . single channel vs dual ch , in apps it is pretty even , 3dmarks are better , by 2 or 3 % it not a huge gap , but if money is not a huge issue 939 is the way to go 38
do you have fast writes enabled?? , also ive read where turning down hardware accel on the gpu helped peoples 9700pro a great deal , it should be on the troublshooting tab in your card settings window , GL